PB Max was a candy bar made in the United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 by Mars

Mars, Incorporated

Mars, Incorporated is a worldwide manufacturer of confectionery, pet food, and other food products with US$30 billion in annual sales in 2010, and is ranked as the 5th largest privately held company in the United States by Forbes. Headquartered in McLean, unincorporated Fairfax County, Virginia,...

, launched in 1989 or 1990. They were made of creamy peanut butter

Peanut butter

Peanut butter is a food paste made primarily from ground dry roasted peanuts, popular in North America, Netherlands, United Kingdom, and parts of Asia, particularly the Philippines and Indonesia. It is mainly used as a sandwich spread, sometimes in combination as in the peanut butter and jelly...

 and oat

Oat

The common oat is a species of cereal grain grown for its seed, which is known by the same name . While oats are suitable for human consumption as oatmeal and rolled oats, one of the most common uses is as livestock feed...

s on top of a square-shaped whole grain

Whole grain

Whole grains are cereal grains that contain cereal germ, endosperm, and bran, in contrast to refined grains, which retain only the endosperm. Whole grains can generally be sprouted while refined grains generally will not sprout. Whole-meal products are made by grinding whole grains in order to make...

 cookie, enrobed

Enrober

An enrober is a machine used in the confectionery industry to coat a food item with a coating medium, typically chocolate. Foods coated by enrobers include nuts, ice cream, toffee and other miscellaneous candy items, biscuits and cookies. Enrobing is essentially a mechanized form of hand-dipping...

in milk chocolate.

Early television commercials for PB Max declared that the "PB" in its name didn't stand for things such as "piggy banks", "polka band", "portly ballerina", "platinum blonde", "penguin black-belt", "pig basketball", "plow boy", "pure bliss", or "pink baboon" — but that it in fact stood for "Peanut Butter."

According to former Mars executive Alfred Poe, PB Max was discontinued due to the Mars family's distaste for peanut butter, despite $50 million in sales.